A limiting device for steel structure welding

Abstract

The application discloses a limiting device for steel structure welding, and relates to the technical field of steel structure welding, which comprises a base and a protective cover detachably installed on the outer side of the base, the upper side of the base is provided with a moving table, the upper middle part of the base is provided with an adjusting mechanism, the moving table is located on the lower side of the adjusting mechanism, the upper side of the moving table is provided with two placement mechanisms and two transverse moving mechanisms which are distributed in front and back, the placement mechanisms are located between the adjusting mechanism and the transverse moving mechanisms, the adjusting mechanism comprises a feeding table arranged on the left part of the upper side of the base, and the placement mechanism comprises a mechanism plate located between the adjusting mechanism and the transverse moving mechanisms. The limiting device for steel structure welding can realize the limiting and fixing of the whole frame by the left and right movement of the moving table on the base and the feeding of the intermediate connection square steel by the conveying belt, so that the square steels are stable and difficult to displace during welding, and the welding efficiency and yield are improved.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and in particular to a limiting device for steel structure welding. Background Technology

[0002] A sign is a carrier of information used to indicate, guide, prompt, or warn. It is widely used in public facilities, commercial places, and traffic environments. Signs are often made by attaching advertising paper to a steel frame. Welding equipment is required during the production of sign frames.

[0003] Chinese patent document CN223712362U discloses a construction sign, belonging to the field of signage technology. This utility model includes a fixed frame with pre-drilled screw holes. A limiting plate is provided on the fixed frame, and the limiting plate has two assembly grooves. A through hole is also provided on the outer wall of the limiting plate, communicating with the assembly grooves. When the limiting plate is fixed to the fixed frame, the assembly grooves cooperate with the fixed frame to form an assembly cavity. This utility model, through the pre-drilled screw holes, limiting plate, and through hole, ensures that when the indicator plate is replaced, the reinstalled fixing bolts accurately align with the original pre-drilled screw holes on the fixed frame. Because the fixing bolts can be accurately and firmly screwed into the original pre-drilled screw holes on the fixed frame during installation, the risk of loosening due to the connection between the two holes is avoided, significantly improving the stability and safety of the sign.

[0004] The existing technology has the following problems:

[0005] Existing sign frames are often welded manually. Because the frame is square, the square steel is unstable and prone to movement in the early stages of welding, which has a significant impact on the quality and efficiency of welding and makes it difficult to weld quickly and stably. Summary of the Invention

[0006] The main objective of this invention is to provide a limiting device for steel structure welding, which can effectively solve the problem that the movement between square steel bars during welding affects the welding quality and efficiency.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A limiting device for welding steel structures includes a base and a protective cover detachably mounted on its outer side. A movable platform is provided on the upper side of the base. An adjustment mechanism is provided in the middle of the upper side of the base, and the movable platform is located below the adjustment mechanism. Two placement mechanisms and two transverse movement mechanisms are provided on the upper side of the movable platform, which are distributed front to back. The placement mechanism is located between the adjustment mechanism and the transverse movement mechanism. The adjustment mechanism includes a feeding platform provided on the upper left side of the base. The placement mechanism includes a mechanism plate located between the adjustment mechanism and the transverse movement mechanism. A first feeding groove is provided on the upper side of the mechanism plate. A second feeding groove is provided on the side of the mechanism plate away from the transverse movement mechanism. The right end of the first feeding groove and the middle of the upper side of the second feeding groove are connected by a vertical groove.

[0009] The moving platform moves left and right on the base in an electric control manner, and the mechanism plate moves back and forth on the moving platform in an electric control manner. Several discharge holes are opened on the right side of the discharge platform. When the spacing between the mechanism plates is the narrowest, the discharge holes are aligned with the left ends of the first and second discharge slots. A conveyor belt is provided on the upper side of the base near the right side. The square steel is fed and transported through the discharge holes on the discharge platform and the conveyor belt.

[0010] Preferably, a torsion spring driven limiting plate is rotatably connected to the side of the mechanism plate away from the transverse movement mechanism and near the left side. Two limiting plates are distributed vertically, and the two limiting plates pass through the side wall of the mechanism plate and enter the first and second feeding slots respectively. An adjustable guide plate is fixedly connected to the right side of the feeding platform, and the guide plate is used to drive the limiting plate to rotate towards the side closer to the transverse movement mechanism.

[0011] Preferably, the mechanism plate has several laterally distributed limiting components located on the upper side of the side away from the transverse movement mechanism. Each limiting component includes a movable block adjustablely connected to the side of the mechanism plate away from the transverse movement mechanism. The movable block is rotatably connected to a limiting rod driven by a torsion spring on the side away from the transverse movement mechanism. A hollow beam is fixedly connected to the upper center of the base, and the hollow beam is located on the upper side of the movable platform. A pressure rod for pressing down the limiting rod is fixedly connected to the upper side of the hollow beam. The movable block is provided with an electromagnetic block to prevent the limiting rod from being reset by the torsion spring.

[0012] Preferably, a rotating assembly is fixedly connected to the side of the mechanism plate near the transverse moving mechanism. The rotating assembly includes a side suction plate rotatably connected to the upper side of the mechanism plate. The lower left edge of the side suction plate is located on the upper right side of the vertical groove on the mechanism plate. An adjustable lateral position limiting plate is fixedly connected to the upper side of the side suction plate near the right side. A lifting plate that can be raised and lowered is provided on the lower inner surface of the second discharge trough. The upper right surface of the mechanism plate is coplanar with the lower inner surface of the first discharge trough.

[0013] Preferably, a vertical rod is fixedly connected to the left side of the mechanism plate near the transverse mechanism. A moving plate is slidably connected to the lower side of the moving platform. A slider is slidably connected to the left side of the moving plate. The moving plate can only slide left and right, and the slider can only slide back and forth. A pull rope is fixedly connected to the rear side of the side suction plate. The other end of the pull rope passes through the upper side of the vertical rod and moves from the left side of the moving platform to the lower side of the moving platform and is fixedly connected to the left side of the slider. A guide wheel for changing the direction of the pull rope is rotatably connected to the vertical rod. A tension spring is fixedly connected between the lower side of the moving platform near the left side and the left side of the moving plate. A limiting platform for blocking the moving plate is provided on the upper left side of the base.

[0014] Preferably, a retaining pin is fixedly connected to the left side of the slider, and the lower side of the mechanism plate is sleeved on the outside of the retaining pin via a ring near the right side. The ring passes through the upper side slot of the moving platform to the lower side of the moving platform. A left-right adjustable limiting block is fixedly connected in the upper side groove of the base. The lower side protrusion of the limiting platform is slidably connected in the groove on the upper side of the base. The left side of the limiting block is used for electromagnetic adsorption of the right side of the limiting platform.

[0015] Preferably, a feeding assembly is provided on the side of the mechanism plate away from the transverse movement mechanism. The feeding assembly includes an inclined plate, a turntable, and a clamping module installed on its left side. A mounting platform that can be adjusted left and right is fixedly connected to the side of the mechanism plate away from the transverse movement mechanism. The inclined plate and the turntable are rotatably connected to the mounting platform on the side closer to the transverse movement mechanism.

[0016] Preferably, the adjusting mechanism further includes a transmission shaft that is moved left and right by the transverse mechanism. A driving assembly is slidably connected to the inner side of the hollow beam. The driving assembly includes a U-shaped slide and a gear rotatably connected to its inner side. The inner side of the gear is fixedly connected to the outer side of the transmission shaft. A rack is slidably connected to the upper side of the U-shaped slide. The lower side of the rack meshes with the upper side of the gear. An elastic reset member is provided on the U-shaped slide to pull the rack to the left. The transmission shaft passes through the rotatable connection of the hollow beam, the U-shaped slide, the mechanism plate, and the turntable. An adjusting assembly is slidably connected to the upper left side of the hollow beam. The adjusting assembly includes a baffle that pushes the rack.

[0017] Preferably, an adjustable sleeve that can be adjusted left and right is fixedly connected to the upper left side of the hollow beam, the outer side of the baffle is sleeved on the inner side of the adjustable sleeve, an n-shaped drive frame is fixedly connected to the upper side of the baffle, an electromagnetic component for adsorbing the n-shaped drive frame and a spring component for pushing the n-shaped drive frame upward are provided on the upper side of the adjustable sleeve, push blocks are fixedly connected to the front and rear sides of the n-shaped drive frame, and guide frames for pushing the push blocks downward are slidably connected to the front and rear sides of the hollow beam, so that the guide frames move when the moving platform moves.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This invention provides a limiting device for steel structure welding. Based on the cooperation of the mounting mechanism, mechanism plate, first feeding trough, second feeding trough, rotating component, upright, side suction plate, limiting plate, pull rope, slider, moving plate, limiting platform and limiting block, the device achieves the limiting and fixing of the entire frame by the left and right movement of the moving platform on the base and the feeding of the intermediate connecting square steel by the conveyor belt. This facilitates the stability between the square steels during welding, preventing displacement and improving welding efficiency and yield.

[0020] 2. This invention provides a limiting device for steel structure welding. Based on the cooperation of an adjusting mechanism, hollow beam, transmission shaft, pressure rod, guide plate, mechanism plate, first feeding chute, second feeding chute, rotating assembly, side suction plate, pull rope, slider, moving plate, locking shaft, tension spring, limiting assembly, moving block, limiting rod, feeding assembly, turntable, clamping module, limiting sleeve, inclined plate, mounting platform, linkage assembly, limiting plate, lifting plate, transverse mechanism, limiting platform and limiting block, and through the adjustable connection of components such as the limiting platform and moving block, the device can be adapted to square steel of different specifications and frames of different specifications, thereby improving the applicability of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the base portion of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the mobile platform portion of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the placement mechanism part of the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the mechanism plate portion of the present invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the hollow beam portion of the present invention;

[0028] Figure 8 For the present invention Figure 5 Enlarged structural diagram of part A in the middle;

[0029] Figure 9 This is a partial cross-sectional three-dimensional structural schematic diagram of the hollow beam portion of the present invention;

[0030] Figure 10This is a partial cross-sectional three-dimensional structural diagram of the rotating component part of the present invention;

[0031] Figure 11 This is a three-dimensional structural diagram of the rotating component part of the present invention;

[0032] Figure 12 For the present invention Figure 9 Enlarged structural diagram of section B in the middle;

[0033] Figure 13 For the present invention Figure 9 Enlarged structural diagram of section C in the middle;

[0034] Figure 14 This is an exploded three-dimensional structural diagram of the feeding component of the present invention.

[0035] In the diagram: 1. Base; 2. Protective cover; 3. Moving platform; 4. Adjustment mechanism; 41. Hollow beam; 42. Drive shaft; 43. Pressure rod; 44. Discharge platform; 45. Guide plate; 46. Drive assembly; 461. U-shaped slide; 462. Gear; 463. Rack; 47. Adjustment assembly; 471. Adjustment sleeve; 472. Baffle; 473. N-shaped drive frame; 474. Push block; 48. Guide frame; 5. Placement mechanism; 51. Mechanism plate; 52. First discharge chute; 53. Second discharge chute; 54. Rotary... 541. Moving component; 542. Upright pole; 543. Side suction plate; 544. Limiting plate; 545. Pull rope; 546. Slider; 547. Moving plate; 548. Clip shaft; 55. Tension spring; 56. Limiting component; 551. Moving block; 552. Limiting rod; 56. Feeding component; 561. Turntable; 562. Clamping module; 563. Limiting sleeve; 564. Inclined plate; 565. Mounting platform; 57. Linkage component; 58. Limiting plate; 59. Lifting plate; 6. Horizontal movement mechanism; 7. Limiting platform; 8. Limiting block. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] Example 1, as Figures 1-4 As shown, a limiting device for steel structure welding includes a base 1 and a protective cover 2 that is detachably installed on its outside. The protective cover 2 is installed on the base 1 in a detachable manner, and the detachable manner is a snap-on type. It is used to close the equipment in the shutdown state to prevent external influence on it.

[0038] A movable platform 3 is provided on the upper side of the base 1. The movable platform 3 can be electrically driven to move left and right. The movement can be driven by a motor-driven screw to move the movable platform 3 left and right. An adjustment mechanism 4 is provided in the middle of the upper side of the base 1, and the movable platform 3 is located below the adjustment mechanism 4.

[0039] The upper side of the moving platform 3 is provided with two placement mechanisms 5 and two transverse movement mechanisms 6 distributed in front and behind. The placement mechanism 5 is located between the adjustment mechanism 4 and the transverse movement mechanism 6. The adjustment mechanism 4 includes a feeding platform 44 located on the upper left side of the base 1. The left side of the feeding platform 44 can be automatically fed or manually fed to put the square steel to be welded into the feeding hole.

[0040] The placement mechanism 5 includes a mechanism plate 51 located between the adjustment mechanism 4 and the transverse movement mechanism 6. A first material discharge groove 52 is provided on the upper side of the mechanism plate 51. The lateral square steel of the frame is placed in the first material discharge groove 52. A second material discharge groove 53 is provided on the side of the mechanism plate 51 away from the transverse movement mechanism 6. The transverse square steel supporting the whole is placed in the second material discharge groove 53. The right end of the first material discharge groove 52 and the upper middle part of the second material discharge groove 53 are connected by a vertical groove.

[0041] The moving platform 3 moves left and right on the base 1 by electric control, and the mechanism plate 51 moves back and forth on the moving platform 3 by electric control. The movement of the mechanism plate 51 can be driven by an electric cylinder. Several discharge holes are opened on the right side of the discharge platform 44. When the spacing between the mechanism plates 51 is the narrowest, the discharge holes are aligned with the left ends of the first discharge groove 52 and the second discharge groove 53. A conveyor belt is provided on the upper side of the base 1 near the right side. The conveyor belt is used to transport the square steel connecting the lateral square steel. The square steel is fed and transported through the discharge holes on the discharge platform 44 and the conveyor belt.

[0042] Example 2, as Figures 4-8 As shown, a torsion spring driven limiting plate 58 is rotatably connected to the side of the mechanism plate 51 away from the transverse moving mechanism 6 and near the left side. When the limiting plate 58 rotates towards the side near the transverse moving mechanism 6, the side of the limiting plate 58 near the transverse moving mechanism 6 tilts due to the rotation, which serves to guide the square steel. By adjusting the distance between the limiting plate 58 and the side of the first discharge chute 52 or the second discharge chute 53 near the transverse moving mechanism 6, it can adapt to square steel with different front and rear widths in turn.

[0043] Two limiting plates 58 are distributed vertically, and the two limiting plates 58 pass through the side wall of the mechanism plate 51 and enter the first discharge trough 52 and the second discharge trough 53 respectively. An adjustable guide plate 45 is fixedly connected to the right side of the discharge platform 44. The adjustable method is to use screws and nuts for adjustment. By adjusting the relative position of the left and right sides of the guide plate 45, the amplitude of the guide plate 45 guiding the limiting plate 58 can be adjusted. The guide plate 45 is used to drive the limiting plate 58 to rotate towards the side closer to the transverse mechanism 6.

[0044] It should be noted that when the two mechanism plates 51 are adjusted to their minimum, the moving stage 3 moves on the base 1, causing the guide plate 45 to push the limiting plate 58, thereby adjusting the rotation amplitude of the limiting plate 58, and feeding materials into the first feeding trough 52 and the second feeding trough 53 through the feeding hole on the feeding stage 44.

[0045] Preferably, a plurality of laterally distributed limiting components 55 are provided on the side of the mechanism plate 51 away from the transverse moving mechanism 6 near the upper side. The limiting components 55 include a movable block 551 that is adjustablely connected to the side of the mechanism plate 51 away from the transverse moving mechanism 6. The movable block 551 can be adjusted by screws and nuts, relying on loosening the nuts when sliding and tightening the nuts when fixing.

[0046] A torsion spring driven limit rod 552 is rotatably connected to the side of the moving block 551 away from the transverse mechanism 6. The limit rod 552 is used to limit the leftmost position of the square steel conveyed by the conveyor belt. A hollow beam 41 is fixedly connected to the upper middle part of the base 1, and the hollow beam 41 is located on the upper side of the moving platform 3. A pressure rod 43 that presses down the limit rod 552 is fixedly connected to the upper side of the hollow beam 41. When the moving platform 3 moves and drives the mechanism plate 51 to move to the left, the pressure rod 43 will push the limit rod 552 to rotate. An electromagnetic block is provided on the moving block 551 to prevent the limit rod 552 from being reset by the torsion spring.

[0047] It should be noted that the movement of the moving table 3 on the base 1 causes the first feeding chute 52 to move to the left, so that the pressure rod 43 presses down on the limit rod 552. The electromagnetic block on the moving block 551 attracts the limit rod 552, preventing it from resetting. When the moving table 3 resets, the electromagnetic attraction is disconnected from the leftmost moving block 551, causing the limit rod 552 to reset. Then the conveyor belt feeds material, and then the next limit rod 552 resets, and the conveyor belt feeds material again. The position and quantity of the square steel between the side square steel are controlled by controlling the position and quantity of the limit components 55.

[0048] Example 3, as Figures 9-11 As shown, a rotating assembly 54 is fixedly connected to the side of the mechanism plate 51 near the transverse mechanism 6. The rotating assembly 54 includes a side suction plate 542 rotatably connected to the upper side of the mechanism plate 51. The side suction plate 542 has the ability to electromagnetically attract in the side direction. The side square steel slides from the first discharge groove 52 into the side suction plate 542. The lower left edge of the side suction plate 542 is located on the upper right side of the vertical groove on the mechanism plate 51.

[0049] An adjustable lateral position limiting plate 543 is fixedly connected to the upper side of the side suction plate 542 near the right side. The adjustable method is screw and nut adjustment. It is used to limit the rightmost position of the lateral square steel in the side suction plate 542. The lower inner surface of the second discharge trough 53 is provided with a liftable lifting plate 59. The lifting plate 59 is used to limit the height of the bottom lateral square steel. At the same time, the lifting plate 59 is fixed to the lateral square steel by means of electromagnetic adsorption or clamping mechanism, so that it cannot move. The upper right surface of the mechanism plate 51 is coplanar with the lower inner surface of the first discharge trough 52.

[0050] Preferably, a vertical rod 541 is fixedly connected to the left side of the mechanism plate 51 near the transverse mechanism 6, and a moving plate 546 is slidably connected to the lower side of the moving platform 3. The moving platform 3 is supported on the base 1 in the form of a transverse convex beam, so that there is a gap between the base 1 and the moving platform 3 to accommodate the moving plate 546 and other components on the lower side of the moving platform 3.

[0051] The left side of the movable plate 546 is slidably connected to the slider 545, and the movable plate 546 can only slide left and right, while the slider 545 can only slide back and forth. The upper side of the base 1 is fixedly connected to multiple front and rear distributed limit rods. The movable plate 546 is directly slidably connected to the limit rods, so that the movable plate 546 can adjust the movable stage 3 without affecting its reset.

[0052] A pull rope 544 is fixedly connected to the rear side of the side suction plate 542. The other end of the pull rope 544 passes through the upper side of the upright 541 and moves from the left side of the moving platform 3 to the lower side of the moving platform 3 and is fixedly connected to the left side of the slider 545. A guide wheel that changes the direction of the pull rope 544 is rotatably connected to the upright 541. The guide wheel located at the upper end of the upright 541 can be controlled in height by setting an electric cylinder at its bottom, thereby adjusting the tension of the pull rope 544.

[0053] A tension spring 548 is fixedly connected between the lower side of the movable platform 3 near the left side and the left side of the movable plate 546. The left end of the tension spring 548 moves with the movable platform 3, and the right end pulls the movable plate 546. A limiting platform 7 for blocking the movable plate 546 is provided on the upper left side of the base 1.

[0054] It should be noted that when the moving platform 3 moves on the base platform 1, the moving plate 546 is stopped by the limiting platform 7, so that it stops moving. As the moving platform 3 continues to move, the moving plate 546 drives the side suction plate 542 to rotate by pulling the pull rope 544. The side suction plate 542 adsorbs the lateral square steel and makes it stand up, so as to fit the lateral direction with the transverse square steel at the bottom for support, which facilitates the welding of the two.

[0055] Preferably, a retaining pin 547 is fixedly connected to the left side of the slider 545. The lower side of the mechanism plate 51 is connected to the outer side of the retaining pin 547 by a ring. After the ring is connected to the retaining pin 547, when the mechanism plate 51 moves back and forth on the moving table 3, it can drive the slider 545 to move back and forth on the moving plate 546, so as to prevent the pull rope 544 from tilting back and forth at the bottom of the moving table 3, which would affect the rotation effect of the side suction plate 542. The ring passes from the upper side strip hole of the moving table 3 to the lower side of the moving table 3.

[0056] A left-right adjustable limiting block 8 is fixedly connected in the upper groove of the base 1. The limiting block 8 is adjusted by setting a rod on its left side. The adjustment method is still fixed by screws and nuts. The initial position of the limiting platform 7 is adjusted by the limiting block 8, thereby adjusting the range of movement of the moving plate 546 relative to the moving platform 3. The lower protrusion of the limiting platform 7 is slidably connected in the groove on the upper side of the base 1. The left side of the limiting block 8 is used for electromagnetic adsorption of the right side of the limiting platform 7.

[0057] It should be noted that adjusting the position of the limiting block 8, and thus the initial position of the limiting platform 7, causes the moving platform 3 to move the moving plate 546. However, the moving plate 546 is restricted by the limiting platform 7, causing it to stop moving. This, in turn, pulls the side suction plate 542 to rotate. Due to the different initial positions of the limiting platform 7, the rotation amplitude of the side suction plate 542 is different, thus adapting to lateral square steel with different tilt angles. After the limiting block 8 is de-energized, it is pulled by the tension spring 548, causing the moving plate 546 to reset, which in turn resets the side suction plate 542.

[0058] Example 4, as Figures 12-14 As shown, a feeding assembly 56 is provided on the side of the mechanism plate 51 away from the transverse movement mechanism 6. The feeding assembly 56 includes an inclined plate 564, a turntable 561, and a clamping module 562 installed on its left side. The inclined plate 564 is used to limit the rightmost position of the square steel placed from the unloading table 44. The clamping module 562 adopts the form of two clamping plates. The upper clamping plate is in a different position, and the lower clamping plate is driven to move up and down by an electric cylinder. A left-right adjustable mounting platform 565 is fixedly connected to the side of the mechanism plate 51 away from the transverse movement mechanism 6. The adjustable method is screw and nut adjustment.

[0059] The inclined plate 564 and the turntable 561 are rotatably connected to the mounting platform 565 on the side near the transverse mechanism 6. The inclined plate 564 is adjustable. The mounting platform 565 is rotatably connected to the limiting sleeve 563, whose rotation axis coincides with the rotation axis of the turntable 561, which is used to limit the rotation amplitude of the turntable 561. A linkage component 57 is provided between the limiting sleeve 563 and the inclined plate 564. The linkage component 57 is a multi-gear set, which can adjust the inclined plate 564 and the clamping module 562 at the same time.

[0060] It should be noted that the clamping module 562 is used to clamp the inclined support square steel, which is installed between the lateral square steel and the bottom transverse square steel.

[0061] Preferably, the adjusting mechanism 4 also includes a transmission shaft 42 that is moved left and right by the transverse mechanism 6. The movement is achieved by the motor driving the threaded rod to rotate, which in turn drives the collar to move. The end of the transmission shaft 42 is rotatably connected inside the collar, thereby enabling the transverse mechanism 6 to drive the transmission shaft 42 to move. The inner side of the hollow beam 41 is slidably connected to a drive assembly 46, which includes a U-shaped slide 461 and a gear 462 rotatably connected to its inner side.

[0062] The inner side of gear 462 is fixedly connected to the outer side of transmission shaft 42. A rack 463 is slidably connected to the upper side of U-shaped slide 461. The lower side of rack 463 is meshed with the upper side of gear 462. U-shaped slide 461 is provided with an elastic reset member that pulls rack 463 to the left. After rack 463 is pushed to move relative to U-shaped slide 461, when rack 463 is no longer subjected to other forces, the elastic reset will push rack 463 to reset.

[0063] The drive shaft 42 passes through the rotational connection of the hollow beam 41, the U-shaped slide 461, the mechanism plate 51, and the turntable 561. An adjustment assembly 47 is slidably connected to the upper left side of the hollow beam 41. The adjustment assembly 47 includes a baffle 472 that pushes the rack 463. When the moving table 3 drives the drive shaft 42 to move to the left, the baffle 472 will push the rack 463 to move to the right relative to the U-shaped slide 461.

[0064] It should be noted that the conveyor belt drives the central connecting square steel to move to the left. The number and position of the central connecting square steel are controlled by the limiting component 55. After the side square steel is welded to the central connecting square steel, the moving table 3 moves to the left, so that the moving plate 546 is restricted by the limiting table 7, which in turn pulls the side suction plate 542 to rotate, so that the side square steel rotates to contact the bottom transverse square steel. At the same time, the transmission shaft 42 synchronously drives the turntable 561 to rotate, feeding the inclined support square steel. After the side square steel is welded to the bottom square steel, the lifting plate 59 on one side attracts the side square steel. Then the two mechanism plates 51 move in the same direction, so that the inclined support square steel on one side is fed. The same method is used to feed the other side.

[0065] Preferably, an adjustable sleeve 471 that can be adjusted left and right is fixedly connected to the upper left side of the hollow beam 41. The adjustment method is still screw and nut adjustment, which is used to control the initial position of the baffle 472, and thus control the rotation amplitude of the transmission shaft 42.

[0066] The outer side of the baffle 472 is sleeved on the inner side of the adjusting sleeve 471. An n-shaped drive frame 473 is fixedly connected to the upper side of the baffle 472. An electromagnetic component that attracts the n-shaped drive frame 473 and a spring component that pushes the n-shaped drive frame 473 upward are provided on the upper side of the adjusting sleeve 471. The spring component can be an elastic telescopic rod. The spring component can be stretched when it is not compressed. The electromagnetic component is used to keep the baffle 472 in the bottom position. Push blocks 474 are fixedly connected to the front and rear sides of the n-shaped drive frame 473. A guide frame 48 that pushes the push blocks 474 downward is slidably connected to the front and rear sides of the hollow beam 41. When the moving table 3 moves, it drives the guide frame 48 to move.

[0067] It should be noted that after the inclined support square steel is fed, the electromagnetic component is de-energized, causing the baffle 472 to move upward, which in turn causes the rack 463 to reset. Finally, the moving table 3 continues to move to the left, and then the square steel feeding operation is carried out.

[0068] The working principle of this invention is as follows: First, the conveyor belt drives the central connecting square steel to move to the left. The number and position of the central connecting square steel are controlled by the limiting component 55. After the lateral square steel is welded to the central connecting square steel, the moving platform 3 moves to the left, causing the moving plate 546 to be restricted by the limiting platform 7. This pulls the side suction plate 542 to rotate, causing the lateral square steel to rotate and contact the bottom transverse square steel. Simultaneously, the transmission shaft 42 synchronously drives the turntable 561 to rotate, feeding the oblique support square steel. After the lateral square steel is welded to the bottom square steel, one of the lifting plates 59 on one side attracts the lateral square steel. Then, the two mechanism plates 51 move in the same direction, feeding the oblique support square steel on one side. The same method is used to feed the other side. Through the left and right movement of the moving platform 3 on the base 1 and the feeding of the central connecting square steel by the conveyor belt, the overall frame is optimized. The limiting and fixing mechanism ensures stability between the square steel bars during welding, preventing displacement and improving welding efficiency and yield. Finally, the moving table 3 moves on the base 1, causing the first feeding trough 52 to move to the left, which causes the pressure rod 43 to press down on the limiting rod 552. The electromagnetic block on the moving block 551 attracts the limiting rod 552, preventing it from resetting. When the moving table 3 resets, the electromagnetic attraction is disconnected from the leftmost moving block 551, allowing the limiting rod 552 to reset. Then, the conveyor belt feeds the material, followed by the reset of the next limiting rod 552, and the conveyor belt feeds the material again. The position and quantity of the square steel bars between the side square steel bars are controlled by controlling the position and quantity of the limiting components 55. Through the adjustable connection of components such as the limiting table 7 and the moving block 551, the device can adapt to square steel bars and frames of different specifications, thereby improving the applicability of the equipment.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A limiting device for welding steel structures, comprising a base (1) and a protective cover (2) detachably mounted on its outer side, characterized in that: The upper side of the base (1) is provided with a moving platform (3), the middle of the upper side of the base (1) is provided with an adjustment mechanism (4), and the moving platform (3) is located below the adjustment mechanism (4). The upper side of the moving platform (3) is provided with two placement mechanisms (5) distributed in front and behind and two transverse movement mechanisms (6), and the placement mechanism (5) is located between the adjustment mechanism (4) and the transverse movement mechanism (6). The adjustment mechanism (4) includes a feeding platform (44) located on the upper left side of the base (1). The placement mechanism (5) includes a mechanism plate (51) located between the adjustment mechanism (4) and the transverse movement mechanism (6). The upper side of the mechanism plate (51) is provided with a first feeding groove (52). The side of the mechanism plate (51) away from the transverse movement mechanism (6) is provided with a second feeding groove (53), and the right end of the first feeding groove (52) and the middle of the upper side of the second feeding groove (53) are connected by a vertical groove. The moving platform (3) moves left and right on the base (1) by electric control, and the mechanism plate (51) moves back and forth on the moving platform (3) by electric control. The right side of the feeding platform (44) is provided with several feeding holes. When the spacing between the mechanism plates (51) is the narrowest, the feeding holes are aligned with the left ends of the first feeding groove (52) and the second feeding groove (53). The upper side of the base (1) is provided with a conveyor belt near the right side. The square steel is fed and transported through the feeding holes on the feeding platform (44) and the conveyor belt. A torsion spring driven limiting plate (58) is rotatably connected to the side of the mechanism plate (51) away from the transverse mechanism (6) and close to the left. Two limiting plates (58) are distributed vertically, and the two limiting plates (58) pass through the side wall of the mechanism plate (51) and enter the first feeding groove (52) and the second feeding groove (53) respectively. An adjustable guide plate (45) is fixedly connected to the right side of the feeding platform (44), and the guide plate (45) is used to drive the limiting plate (58) to rotate towards the side close to the transverse mechanism (6). A rotating assembly (54) is fixedly connected to the side of the mechanism plate (51) near the transverse mechanism (6). The rotating assembly (54) includes a side suction plate (542) rotatably connected to the upper side of the mechanism plate (51). The lower left edge of the side suction plate (542) is located on the upper right side of the vertical groove on the mechanism plate (51). An adjustable lateral position limiting plate (543) is fixedly connected to the upper side of the side suction plate (542) near the right side. A lifting plate (59) that can be raised and lowered is provided on the lower inner surface of the second discharge trough (53). The upper right surface of the mechanism plate (51) is coplanar with the lower inner surface of the first discharge trough (52). A vertical rod (541) is fixedly connected to the left side of the mechanism plate (51) near the transverse mechanism (6). A moving plate (546) is slidably connected to the lower side of the moving platform (3). A slider (545) is slidably connected to the left side of the moving plate (546). The moving plate (546) can only slide left and right, and the slider (545) can only slide back and forth. A pull rope (544) is fixedly connected to the rear side of the side suction plate (542). The other end of the pull rope (544) is threaded through... The upper side of the upright (541) moves from the left side of the moving platform (3) to the lower side of the moving platform (3) and is fixedly connected to the left side of the slider (545). A guide wheel for changing the direction of the pull rope (544) is rotatably connected on the upright (541). A tension spring (548) is fixedly connected between the lower side of the moving platform (3) near the left side and the left side of the moving plate (546). A limiting platform (7) for blocking the moving plate (546) is provided on the upper left side of the base (1).

2. The limiting device for steel structure welding according to claim 1, characterized in that: On the side of the mechanism plate (51) away from the transverse mechanism (6), near the upper side, there are several horizontally distributed limiting components (55). The limiting components (55) include a movable block (551) that is adjustablely connected to the side of the mechanism plate (51) away from the transverse mechanism (6). The side of the movable block (551) away from the transverse mechanism (6) is rotatably connected to a limiting rod (552) driven by a torsion spring. A hollow beam (41) is fixedly connected to the upper middle part of the base (1), and the hollow beam (41) is located on the upper side of the moving platform (3). A pressure rod (43) for pressing down the limiting rod (552) is fixedly connected to the upper side of the hollow beam (41). An electromagnetic block is provided on the movable block (551) to prevent the limiting rod (552) from being reset by the torsion spring.

3. The limiting device for steel structure welding according to claim 1, characterized in that: The left side of the slider (545) is fixedly connected to a retaining pin (547). The lower side of the mechanism plate (51) is sleeved on the outside of the retaining pin (547) by a ring, and the ring passes through the upper side slot of the moving platform (3) to the lower side of the moving platform (3). The upper side groove of the base (1) is fixedly connected to a left and right adjustable limiting block (8). The lower side protrusion of the limiting platform (7) is slidably connected to the groove on the upper side of the base (1). The left side of the limiting block (8) is used for electromagnetic adsorption of the right side of the limiting platform (7).

4. A limiting device for steel structure welding according to claim 2, characterized in that: The side of the mechanism plate (51) away from the transverse mechanism (6) is provided with a feeding assembly (56). The feeding assembly (56) includes an inclined plate (564), a turntable (561) and a clamping module (562) installed on its left side. The side of the mechanism plate (51) away from the transverse mechanism (6) is fixedly connected to a mounting platform (565) that can be adjusted left and right. The side of the inclined plate (564) and the turntable (561) near the transverse mechanism (6) are both rotatably connected to the mounting platform (565).

5. A limiting device for steel structure welding according to claim 4, characterized in that: The adjusting mechanism (4) also includes a transmission shaft (42) that is moved left and right by the transverse mechanism (6). A drive assembly (46) is slidably connected to the inner side of the hollow beam (41). The drive assembly (46) includes a U-shaped slide (461) and a gear (462) rotatably connected to its inner side. The inner side of the gear (462) is fixedly connected to the outer side of the transmission shaft (42). A rack (463) is slidably connected to the upper side of the U-shaped slide (461). The lower side of the rack (463) meshes with the upper side of the gear (462). The U-shaped slide (461) is provided with an elastic reset member that pulls the rack (463) to the left. The transmission shaft (42) passes through the rotational connection of the hollow beam (41), the U-shaped slide (461), the mechanism plate (51), and the turntable (561). The upper left side of the hollow beam (41) is slidably connected with an adjustment component (47). The adjustment component (47) includes a baffle (472) that pushes the rack (463).

6. A limiting device for steel structure welding according to claim 5, characterized in that: The upper left side of the hollow beam (41) is fixedly connected to an adjustable sleeve (471) that can be adjusted left and right. The outer side of the baffle (472) is sleeved on the inner side of the adjustable sleeve (471). The upper side of the baffle (472) is fixedly connected to an n-shaped drive frame (473). The upper side of the adjustable sleeve (471) is provided with an electromagnetic component that attracts the n-shaped drive frame (473) and a spring component that pushes the n-shaped drive frame (473) upward. The front and rear sides of the n-shaped drive frame (473) are fixedly connected to push blocks (474). The front and rear sides of the hollow beam (41) are slidably connected to a guide frame (48) that pushes the push blocks (474) downward. When the moving platform (3) moves, it drives the guide frame (48) to move.

Images